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带可拆卸大轮子的行李箱
Luggage case with removable large wheels
US-7441784-B2用于行李箱的可拆卸大轮子，方便更换和收纳。
专利摘要
一种用于行李箱的可拆卸大轮子，具有两个永久性套筒，插入预先存在的小轮安装块的孔中，该安装块包含预先存在的小轮。两个轴，每个套筒中一个，每个轴的内端有一个永久止动件，外端有一个弹簧加载按钮。大轮子在每个轮子的内侧轮毂处有一个延伸的管状部分，防止安装时轮子接触行李箱的外边缘。轴可以向外延伸以接受大轮子，该大轮子通过弹簧加载按钮保持在轴上。不使用时，轴可以缩回套筒中。缩回时，轴通过弹簧加载按钮对套筒内壁的压力防止其向任一方向移动。
Original abstractRemovable large wheels for a luggage case, having two permanent sleeves inserted in holes drilled in the pre-existing small wheel mounting blocks which contain the pre-existing small wheels. Two axles, one in each of the sleeves, with a permanent stop at the inner end of each axle and a spring loaded button at the outer end of each axle. The large wheels have an extended tubular part at the hub on the inner side of each wheel which prevents the wheel from touching the outer edge of the luggage when installed. The axle can be extended outward to accept the large wheel, which is maintained on the axle by a spring loaded button. When not in use, the axle can be retracted back into the sleeve. When retracted the axles are prevented from moving in either direction by the pressure of the spring loaded buttons against the inner wall of the sleeves.
专利附图（8）
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